Home / 88,106.15-121,584.72-49,865.00

Finding the Fourth Proportional to 88,106.15, 121,584.72 and 49,865.00

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Solution

The fourth proportional to 88,106.15, 121,584.72 and 49,865.00 is: 68,812.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,106.15 : 121,584.72 = 49,865.00 : x
  2. Step 2: Convert to fraction form
    88,106.15/121,584.72 = 49,865.00/x
  3. Step 3: Cross multiply
    88,106.15x = 121,584.72 × 49,865.00
  4. Step 4: Simplify right side
    88,106.15x = 6,062,822,366.76
  5. Step 5: Solve for x
    x = 6,062,822,366.76/88,106.15
  6. Step 6: Final answer
    x = 68,812.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.